旋螺丝
- 网络turn of the screw
旋螺丝-
供应：名种塑料手旋螺丝螺帽，适应各器件调节固定用，可来图订制！
Supply : grow the plastics hand screw nut , adapting each spare part to regulate to use fixedly , can come to diagram to order to make !
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他旋出螺丝打开电话机后盖，开始动手把话机跟电话线接上。
He unscrewed the back of the telephone and started connecting it to the cable .
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调整旋梭时，请卸下针板，拧松旋梭固定螺丝6，然后进行调整。
Remove the throat plate , loosen hook screw 6 and adjust the hook .